It looks like you're asking for a helpful guide related to and "تنزيل برنامج مسلمونا بدون نت" (downloading the Muslimona app without internet) .
A: Yes – set the app to play Athan at prayer times. The sound file must be downloaded first (once, with internet). mwaqyt alslat waladhan tnzyl brnamj mslmwna bdwn nt